CBSE Class 12 Business Studies Question Paper 2017 with Answer Key (March 16, Set 1

CBSE Class 12 Business Studies Question Paper 2017 with Answer Key Set 1 - 66/1/1 is available for download. The exam was conducted by the Central Board of Secondary Education on March 16, 2017 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was English & Hindi. In terms of difficulty level, CBSE Class 12 Business Studies paper was of Easy level. The question paper comprised a total of 25 questions.

CBSE Class 12 Business Studies Set 1 - 66/1/1 Question Paper 2017 with Answer Key (March 16)

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CBSE CLASS XII Questions

1.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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4.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

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5.
Why are magnesium blocks attached to iron water pipelines?

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6.
Write mechanism of acid dehydration of ethanol to ethene.

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CBSE Class 12 Business Studies Question Paper 2017 with Answer Key (March 16, Set 1 - 66/1/1)

CBSE Class 12 Business Studies Set 1 - 66/1/1 Question Paper 2017 with Answer Key (March 16)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

4.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

5.
Why are magnesium blocks attached to iron water pipelines?

6.
Write mechanism of acid dehydration of ethanol to ethene.

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CBSE Class 12 Business Studies Set 1 - 66/1/1 Question Paper 2017 with Answer Key (March 16)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

2.Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

4.61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

5.Why are magnesium blocks attached to iron water pipelines?

6.Write mechanism of acid dehydration of ethanol to ethene.

Comments

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1.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

2.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

4.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

5.
Why are magnesium blocks attached to iron water pipelines?

6.
Write mechanism of acid dehydration of ethanol to ethene.